A method and apparatus for driving and storing a covering

E - Fixed Constructions – 06 – B

Patent

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Details

E06B 9/70 (2006.01) E06B 9/60 (2006.01) E06B 9/62 (2006.01)

Patent

CA 2397549

The instant invention is an apparatus for maintaining approximately constant tension of a curtain (22) between a drive roller (70) and a storage roller (40). The constant tension is achieved by pre-tensioning the curtain (22) between the drive roller (70) and the storage roller (40) and then maintaining approximately the same amount of tension by rotating the reference to which one end of a spring (52) is attached. The rotating reference is a shaft (45) which is affixed to and rotates with a shaft gear (50). The other end of the spring (52) is affixed to a cylindrical tube member, i.e., the storage roller (40), upon which the flexible curtain (22) is stored. A motor driven gear (77) drives a gear affixed to the drive roller (70). The gear (66) affixed to the drive roller (70) in turn drives idler gears (58, 62) which in turn drive the shaft gear (50). A method of using the apparatus is also disclosed.

L'invention est un appareil destiné à maintenir une tension à peu près constante d'un store (22) entre un rouleau d'entraînement (70) et un rouleau de stockage (40). La tension constante est assurée par une tension préalable du store (22) entre le rouleau d'entraînement (70) et le rouleau de stockage (40) puis par le maintien d'une tension approximativement égale par la rotation d'un élément de référence auquel est attachée l'une des extrémités d'un ressort (52). L'élément de référence rotatif est un arbre (45) qui est fixé à un engrenage d'arbre (50) et pivote avec celle-ci. L'autre extrémité du ressort (52) est fixée à un élément de tube cylindrique, p.ex., au rouleau de stockage (40), sur lequel est stocké le store souple (22). Un entraînement motorisé (77) met en mouvement un engrenage fixé au rouleau d'entraînement (70). L'engrenage (66) fixé au rouleau d'entraînement (70) met à son tour en mouvement des pignons de renvoi (58, 62), qui entraînent l'engrenage d'arbre (50). L'invention concerne également l'utilisation de l'appareil.

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